5 Answers
5

I read on the BBC news that Google announced this feature and mistakenly enabled it for every user, only to then remove it from non US accounts later that day:

"Unintentionally we briefly made the service available to non-US English users," a spokesperson said. "We do hope to bring it to our international users soon."

When it rolls out the product link will appear on the left hand of the Gmail page within the "chat" window. A "call phone" option will pop up along with a number pad to let you dial the number of the person you want to talk to.

If your account is not US based, it may explain why you could do it but now cannot.

I tried it the day it rolled out, and it worked for my wife, it worked on my secondary account, but not my main one, the one I've been using with Google Voice since it was still Grand Central. Eventually, it started working.